But spoiler alert: It isn't hacking the server. It's hacking you .
Most anti-cheat software (VAC, EasyAntiCheat) looks for memory signatures —patterns of code that modify the game’s RAM. css client mod cheat
When Valve updated VAC to detect hash mismatches on hitbox-altering models, over 60,000 accounts were banned in a single wave. Players who thought, "It's just a silly big head mod, not a real cheat" lost libraries of hundreds of games. But spoiler alert: It isn't hacking the server